Questions tagged as 'qr'

I am trying to print a QR code for a thermal printer. String I print them without problems converting to byte array but when passing a bitmap converted to array of bytes I get all the rare characters and letters. I have read that it may be be...

Hi, I would like to know if there is a way to create QR codes of colors, I am currently using the QR code library, any suggestion is welcome thanks.     

I am trying to develop an application with a QR reader. What I want to achieve is for the QR reader to read the serial number of a machine and use the same serial number to connect to a webservice and validate that the machine is registered....

I have an android app to read QR code. It works fine but I want to use a QR reader (No camera, reader, it is connected by USB to the device). instead of the camera of the android device. When I press the scan button, it does this: public...